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Sequential Five Speed Transmission-April Winner

by Enthusiast on ‎04-26-2016 10:49 AM - edited

My name is Terell Dunn. I'm majoring in mechanical engineering at the University of Alabama in Huntsville. I modelled a sequentially shifted, five speed manual transmission of my own design.


The transmission is of the synchro-less, constant mesh type. Dog clutches are used to engage each gear. I included the center differential within the transmission. All of the gears' teeth were designed with true involute curve geometry using the table driven curve command. For the spur gears, a helix was used to sweep the involute tooth profile along the gear axis. A loft was used to create the tapered tooth of the bevel gears. 63 unique parts were used in the model for a grand total of 337 parts.


Terell Dunn Five Speed Transmission.jpg


by Siemens Valued Contributor Siemens Valued Contributor
on ‎04-28-2016 10:00 AM

Dear Mr Dunn,


OMG, it's beautiful.  What a great model, wow.

You should enter this into the Student Design Contest (

I will send a link to this post to our senior execs in R&D; they will be impressed.


Have you thought of taking the Solid Edge certification exam (  If you think your Solid Edge skills are good then please contact Peter Llewellyn ( and ask for a promo code.


Thanks for using Siemens Solid Edge.





by Siemens Pioneer Siemens Pioneer
on ‎04-28-2016 10:11 AM


WOW! Very impressive.

by Community Manager Community Manager
on ‎04-28-2016 10:19 AM

Wow. Super nice work. I know nothing about transmissions, but I know a thing or two about Solid Edge :-) and this great stuff.


PS> What year are you at Alabama? Did you know Solid Edge is written by a team "up North" :-) in Huntsville Alabama?

by Enthusiast
on ‎04-30-2016 12:16 AM

Thank you all for the kind words.




I thought I had entered the contest by posting the model on this forum. Am I mistaken?





I'm a junior at UAHuntsville. I don't believe I knew SolidEdge was written by a team in Huntsville. That's neat.

by Siemens Valued Contributor Siemens Valued Contributor
on ‎04-30-2016 06:19 AM

Dear Mr Dunn,


Yes, sorry; you've already entered the Student Design Contest.  My mistake.



by Enthusiast
on ‎04-30-2016 07:46 AM

No worries. Thanks for looking out for us.

by Community Admin Community Admin
on ‎05-19-2016 10:54 AM

Congratulations, Terell! You're the April 2016 winner!